3PVN

Triclinic form of Human C-Reactive Protein in complex with Zinc


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.98 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

A Staggered Decameric Assembly of Human C-Reactive Protein Stabilized by Zinc Ions Revealed by X-ray Crystallography.

Guillon, C.Bigouagou, U.M.Folio, C.Jeannin, P.Delneste, Y.Gouet, P.

(2014) Protein Pept Lett 22: 248-255

  • DOI: 10.2174/0929866522666141231111226
  • Primary Citation of Related Structures:  
    3PVN, 3PVO

  • PubMed Abstract: 
  • Human C-reactive protein (CRP) is an acute phase protein, which harbours both host defence and scavenging properties. In this study, we obtained two new crystal forms of CRP, where CRP forms a symmetric, staggered dimer of pentamers. In one of these structures, obtained in the presence of HIV-1 Tat protein, this dimer of pentamers is stabilized by two zinc ions trapped within a cleft of the effector face of CRP ...

    Human C-reactive protein (CRP) is an acute phase protein, which harbours both host defence and scavenging properties. In this study, we obtained two new crystal forms of CRP, where CRP forms a symmetric, staggered dimer of pentamers. In one of these structures, obtained in the presence of HIV-1 Tat protein, this dimer of pentamers is stabilized by two zinc ions trapped within a cleft of the effector face of CRP. These two decameric interfaces involve complementary surfaces of CRP pentamers and bury a large area of ~2000 Å(2) per pentamer, suggesting a biological role of this interface. These two novel decameric interfaces and the involvement of zinc might have important consequences in the understanding of CRP biological functions.


    Organizational Affiliation

    "Biocrystallography and Structural Biology of Therapeutic Targets", UMR 5086 CNRS Universite de Lyon, IBCP 7, passage du Vercors, 69367 Lyon cedex 7, France. christophe.guillon@ibcp.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
C-reactive protein
A, B, C, D, E, F, G, H
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T
206Homo sapiensMutation(s): 0 
Gene Names: CRPPTX1
UniProt & NIH Common Fund Data Resources
Find proteins for P02741 (Homo sapiens)
Explore P02741 
Go to UniProtKB:  P02741
PHAROS:  P02741
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
JA [auth G], JB [auth S], MB [auth T], UA [auth L], W [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download Ideal Coordinates CCD File 
AA [auth C] , AB [auth O] , BA [auth D] , BB [auth P] , CA [auth D] , CB [auth P] , DA [auth E] , DB [auth Q] , 
AA [auth C],  AB [auth O],  BA [auth D],  BB [auth P],  CA [auth D],  CB [auth P],  DA [auth E],  DB [auth Q],  EA [auth E],  EB [auth Q],  FA [auth F],  FB [auth R],  GA [auth F],  GB [auth R],  HA [auth G],  HB [auth S],  IA [auth G],  IB [auth S],  KA [auth H],  KB [auth T],  LA [auth H],  LB [auth T],  MA [auth I],  NA [auth I],  OA [auth J],  PA [auth J],  QA [auth K],  RA [auth K],  SA [auth L],  TA [auth L],  U [auth A],  V [auth A],  VA [auth M],  WA [auth M],  X [auth B],  XA [auth N],  Y [auth B],  YA [auth N],  Z [auth C],  ZA [auth O]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.98 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.3α = 79.9
b = 96.4β = 77.1
c = 160.4γ = 69.4
Software Package:
Software NamePurpose
ADSCdata collection
AMoREphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-01-11
    Type: Initial release
  • Version 1.1: 2015-03-18
    Changes: Database references